Keep in mind that for USA made Mopar hyd flat tappet lifters, they all come from only a couple of suppliers........ no matter whose name is on the box.
It might be down to one supplier now.
Used to be Hylift Johnson, Eaton, Stanadyne.
Stanadyne is no longer making lifters.
Eaton had stopped all flat tappet production for a while, then restarted.
But, it’s not clear their current offerings are made in USA. I believe Eaton bought the Mexican lifter manufacturer Moressa...... and I think that’s where the Eaton flat tappets come from.
I don’t know what the real story is on the “other” Johnson lifters(not Hylift Johnson/Topline).
The other lifter player is Delphi, but afaik they never did anything with Mopar flat lifters.
